Adaptec 5325301656 - Snap Server 14000 NAS, Руководство администратора

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Data Migration
Chapter 4 Storage Configuration and Expansion 51
• Preserve the original permissions settings
Note
If you elect to preserve original permissions settings, be sure to review
Preserving Permissions.
• Verify migrated data
Note
If you elect to verify migrated data, all data will be read twice, once for
migration and once for comparison to the copied data. This could be a lengthy
process.
For details about setting up a migration job, see the online help.
Note
If a migration failed, it is strongly recommended that you enable the
Verify
migrated data
option for the re-migration.
Preserving Permissions
The types of permissions retained will differ, depending on which of the following
migration scenarios is applied:
Migrating from a Windows Security Model to a Windows SnapTree
If you are migrating from a Windows server (or other type of server that follows the
Windows security model) to a Windows SnapTree on a Snap Server, permissions
will be retained exactly as they exist on the source. However, as is the case when
moving files with permissions between Windows servers, permissions for users
that are unknown on the target server will be retained but not enforced. This
includes permissions for:
• Local users on the source machine.
• Domain users for domains unknown to the Snap Server (e.g., trusted domains, if
the Snap Server is not configured to support trusted domains).
• Certain built-in Windows users and groups.
Migrating from a UNIX Security Model to a UNIX SnapTree
If you are migrating from a UNIX server to a UNIX SnapTree, UNIX permissions
for UIDs/GIDs are copied exactly from source to target; thus, identities of the users
and groups will be best retained if the Snap Server belongs to the same NIS domain
as the UNIX server.
Migrating Between Conflicting Security Models
When migrating from a Unix source to a Windows SnapTree, Unix permissions will
be retained and the security personality on the resulting files and directories will be
Unix.